<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div class="list" style="display:flex ; text-align:center;">

    </div>
    <button class="prev">上一页</button>
    <button class="next">下一页</button>
    <span class="s1">1</span>
    <span class="s2">/</span>
    <span class="s3">4</span>

    <script src="./ajax.js"></script>
    <script>

        var page = 1;

        function emo() {
            //默认上一页按钮禁用
            document.querySelector('.prev').disabled = true
            //默认显示第一页的10个表情
            if (document.querySelector('.prev').disabled) {
                ajax('get', `https://yantianfeng.com/api/emotion`, { page: page, count: 10 }).then((data) => {
                    var str = data.emotions.map((item, index) => {
                        return `<div> <img src="${item.url}" /> <div> ${item.title} </div> </div>`
                    }).join('')
                    //渲染表情
                    document.querySelector('.list').innerHTML = str;
                });
            }

        }
        emo()




        //点击上一页, 获取上一页的表情,渲染表情
        document.querySelector('.prev').onclick = function () {
            //启用下一页按钮
            document.querySelector('.next').disabled = false
            document.querySelector('.s1').innerHTML = page - 1
            // console.log(page);
            if (page = --page) {
                emo()
                document.querySelector('.prev').disabled = false
            }
            //如果是第一页，禁用上一页按钮
            if (page == 1) {
                document.querySelector('.prev').disabled = true
            }
        }

        //点击下一页, 获取下一页的表情,渲染表情
        document.querySelector('.next').onclick = function () {
            //启用上一页按钮
            document.querySelector('.prev').disabled = false
            document.querySelector('.s1').innerHTML = page + 1
            // console.log(page);
            if (page = ++page) {
                emo()
                document.querySelector('.prev').disabled = false

            }
            //如果是最后一页，禁用下一页按钮
            if (page == 4) {
                document.querySelector('.next').disabled = true
            }

        }



        //ajax('get','https://yantianfeng.com/api/sdfsd');

    </script>
</body>

</html>